Devens, Massachusetts, United States · On-site
$90k–$145k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Fluid Systems Design, Mechanical Engineering, Chemical Engineering, Ansys, P&ID Development
Somerville, Massachusetts, United States · On-site
$30/hr–$41/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Electro Mechanical Assembly, Precision Calibrated Tools, Blueprint Reading, Troubleshooting, Continuous Improvement
Milpitas, California, United States · On-site
$130k–$200k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Systems Engineering, Program Management, Troubleshooting, Cross-Functional Leadership, Vacuum Architecture
Devens, Massachusetts, United States · On-site
$45/hr–$65/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Mechanical Engineering, Manufacturing Equipment Design, Tooling Design, Hydraulics, Pneumatics
Milpitas, California, United States · On-site
$130k–$200k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Mechanical Engineering, Thin-film Deposition, Vacuum Systems, Thermal Management, SolidWorks
Somerville, Massachusetts, United States · On-site
$30/hr–$41/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Electro Mechanical Assembly, Precision Calibrated Tools, Blueprint Reading, Troubleshooting, Equipment Maintenance
Devens, Massachusetts, United States · On-site
$32/hr–$60/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Team Leadership, Electromechanical Assembly, Prototype Hardware Builds, Troubleshooting, Process Monitoring
Devens, Massachusetts, United States · Hybrid
$140k–$200k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Industrial Control Systems, Embedded Control Systems, CI/CD, Git Version Control, Unit Testing
Devens, Massachusetts, United States · On-site
$275k–$350k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Supply Chain Strategy, Supplier Development, Procurement, Logistics, Supplier Quality
Devens, Massachusetts, United States · On-site
$90k–$145k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Laser Trackers, 3D Metrology, SpatialAnalyzer, Polyworks, Verisurf
Milpitas, California, United States · On-site
$110k–$185k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Metrology, Non-destructive Measurement, Optical Microscopy, Electron Microscopy, Surface Probe Measurements
Devens, Massachusetts, United States · On-site
$32/hr–$52/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Team Leadership, Mechanical Assembly, Lifting Operations, Precision Alignment, Troubleshooting
Milpitas, California, United States · On-site
$150k–$225k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Process Engineering, Inorganic Materials Science, Vacuum-based Processes, Sputtering, Thermal Processes
Devens, Massachusetts, United States · Hybrid
$60/hr–$100/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Full-cycle Recruiting, Sourcing, Candidate Experience, Diversity Equity and Inclusion, Stakeholder Management
Devens, Massachusetts, United States · On-site
$110k–$185k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Power Electronics Design, Circuit Simulation, Medium Voltage Converters, Magnetic Component Design, Control Strategies
Devens, Massachusetts, United States · On-site
$35/hr–$39/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Interview Scheduling, Applicant Tracking Systems, Candidate Experience, Sourcing, Communication
Devens, Massachusetts, United States · On-site
$110k–$185k/yr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Mechanical Engineering, Project Management, CAD Software, Siemens NX, Team Leadership
Devens, Massachusetts, United States · On-site
$30/hr–$40/hr
About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and build…
Skills: Procurement, Purchase orders, Contract negotiation, Invoice resolution, Data analytics
Devens, Massachusetts, United States • On-site
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Develop and commission novel fluid systems for R&D test stands, specifically supporting magnet testing for fusion power plants. This includes designing system instrumentation, performing thermal and structural simulations, and managing the procurement of specialized components.
Requires a Bachelor's degree in mechanical, chemical, or process engineering with over 5 years of experience in integrated fluid systems. Candidates must have hands-on experience with the full lifecycle of thermofluid systems and proficiency in tools like ANSYS, COMSOL, or Python.
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.
Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers and suppliers to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.
Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.
If that’s you and this role fits, we want to hear from you.
The role of an R&D Test Engineer is to develop novel fluid systems for R&D test stands, with a major focus on supporting magnet testing. The range of process fluids is broad (liquid, gaseous, cryogenic, supercritical, molten salt, etc.), requiring strong mechanical and chemical engineering fundamentals. The ideal candidate will be resourceful—combining industry best practices, off-the-shelf and customized hardware, and creativity to deliver these fluid systems on tight timelines.
Projects will be on varying scales, from smaller-scale test stands and deep system analysis to larger, complex projects as needed for SPARC and ARC. In addition to designing and building, the engineer will actively operate as a test engineer to commission systems and design automation alongside a team of test/software engineers and operators. You must work collaboratively across production, R&D, procurement, and the SPARC team. Various projects will also require flexing outside of traditional fluids engineering into other disciplines, such as structures and materials engineering, to successfully retire risks for SPARC and ARC.
\nWhat you'll do:#LI-Onsite
At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.
We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.
Designing and building commercial fusion systems to provide limitless, clean energy to the world
Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges. It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply. We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality. We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally. As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same. If you are interested in joining our team, check out cfs.energy/careers for more information.
Offices: 117 Hospital Rd, Devens, Massachusetts 01434, US
Designing and building commercial fusion systems to provide limitless, clean energy to the world
Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges. It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply. We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality. We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally. As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same. If you are interested in joining our team, check out cfs.energy/careers for more information.
Offices: 117 Hospital Rd, Devens, Massachusetts 01434, US
